Batch example

Eventually I will write some documentation for Batch. For now, here is
a quick and dirty example.

PHPWS_Core::initCoreClass('Batch.php');

$batches = new Batches('name_of_batch');

// Reset batch to start over
//$batches->clear();


// Total number of records
$batches->setTotalItems($total_items);

// Number of records to parse each iteration
$batches->setBatchSet($batch_number);



// Gets the batch number from the url and loads internal info
if (!$batches->load()) {
   exit('Batch was previously run.');
}

$start = $batches->getStart();
$limit = $batches->getLimit();

$db = new PHPWS_DB('some_table');
$db->setLimit($limit, $start);
test($db->select());

// Shows a simple completion graph
echo $batch->getGraph();

// We are done with this batch
$batch->completeBatch();

if ($batch->isFinished()) {
   exit('All Done!');
} else {
   // send user to same page meta redirect
   // Layout MUST render the page.
   $batch->nextPage();

   // or to use a header
   // header('location: ' . $batch->getAddress());
}